Abstract

The main contributions of this work are summarised as follows: A flexible and low-cost object modelling framework, with rendering methods, for intermixing discrete and continuous volume data. Image-swept volumes: A new modelling paradigm in which attribute fields of volume objects are defined by sweeping discrete image or volume templates along arbitrary trajectories. A projection-based texture mapping method for volume objects. A method for rendering Bezier volumes and free-form deformations of volume objects. vlib: A volume graphics API, including detailed design and implementation details. The field-based modelling framework addresses the limitations of using discrete data for representing volume objects. It not only results in very high quality images (with shadows, reflection and refraction) while supporting "traditional" volume graphics, which we demonstrate using several examples, but also it frequently reduces the significant memory overhead that is normally associated

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